Vaporizer for heaters



April 29,1930. BLAUDEAU ET AL VAPORIZER FOR HEATERS Filed Dec. 29, 1927 i0 Fig,

In van Patented Apr. 29, 1930 UHTED STATES PATENT QFFICE JEAN BAPTISTE BLAUDEA'U, F CHATEAUROUX, JULES LIMOUSIN, OF SASSIERGES- ST.-GERMAIN, AND HENRI ROUSSEAUX AND ANDRE DUMQNT, OF PARIS, FRANCE VAPORIZER FOR HEATERS Application filed December 29, 1927. Serial No. 243,454.

This invention relates to a vaporizer for use with boilers and heaters and of the kind wherein the heat-interchange takes place through the walls of a principal conduit as well as through minor conduits arranged so as to pick up the heating fluid through a funnel, and the invention consists in the provision of a principal conduit in the form of a tubular shell having deep, circumferential :orrugations, and annular pipes embracing the shell and spaced therefrom and accommodated within said corrugations, both ends of each pipe being connected to the shell so as to communicate with the interior thereof, one

of the ends being fitted with a funnel arranged so as to face the currents of the heating fluid and cause part of the latter to pass through the pipe;

Fig. 1 of the accompanying drawings represents a longitudinal section of the device,

taken on the line 11 of Fig. 2, and

Fig. 2, a cross section of the same.

The vaporizer comprises a tubular shell 1 through which the heating fluid or the flames from a burner are driven in the direction of the arrows. The shell is provided with a plurality of deep, circumferential corruga-' tions within each of which an annular pipe 4, which embraces the shell but which is spaced therefrom, is accommodated. Both ends of each pipe are secured to the shell at the bottom of the corrugation and open into the interior of the shell. In one-end an elbow 2 is fitted which terminates in a funnel 3, the latter being set so as to face the flames or the current of the heating fluid. Each funnel will therefore catch a portion of the heating fluid which will pass'through the pipe and then re-enter the shell. Heat-interchange will thus take place through the walls of the pipes as well as through the walls of the shell, and a rapid and effective utilization of the heat will be obtained.

The funnels 3 are arranged in a relativ staggered position.

Sincethe funnels are kept at a high temperature they will effect a completecombustion of gaseous particles impinging thereon, and the formation of soot will thus be prevented.

The vaporizer is suitable for use in any heating system and can be arranged in horizontal, vertical or inclined position.

We claim:

1. A vaporizer of the character described, comprising a tubular shell having deep, circumferential corrugations, and annular pipes embracing the shell, spaced therefrom and accommodated within said corrugations, both ends of each pipe being connected to the shell s? as to communicate with the interior there- 0 2. A structure as claimed in claim 1 and having a funnel terminating one end of each pipe inside the shell, all the funnels being arranged so as to face in the same axial direction as the shell.

In testimony whereof we have signed our names to this specification.

JEAN BAPTISTE BLAUDEAU. JULES LIMOUSIN. HENRI ROUSSEAUX.

. ANDRE DUMONT. 

